The Korean Badminton Open entered the semi-finals today. He Bingjiao defeated Canada's Li Wenshan 2-0 and will compete with Intanon for the women's singles championship.   He Bingjiao and Li Wenshan have played against each other 4 times before, and He Bingjiao insisted on winning all of them. The closest time was the my country Open in Fuzhou last year, where He Bingjiao won in 3 games. He Bingjiao took the initiative after the start and quickly led 2-0. From then on, the minimum distance between the two was 1 point, which was 2-1. He Bingjiao continued to distance herself. She entered the break at 11-6 and won the first game 21-9.   The second game was much more intense. Li Wenshan maintained the lead in the first half. She once led 6-2 by 4 points. After He Bingjiao tied the match at 7, Li Wenshan opened a 2-point gap again. He Bingjiao tied the score at 9 and 10, and then she scored consecutively, opening the score to 15-10 in one breath, thus establishing her advantage. Li Wenshan later came close to 2 points again, and He Bingjiao finally won the second game 21-15.   The other semi-final pitted No. 6 seed Intanon against No. 3 seed Tai Tzu Ying. The two met as many as 25 times, with Intanon slightly dominant 13-12. In today's game, the two players were inseparable in the first game. Intanon had been leading in the first half, but Tai Tzu Ying scored 5 consecutive points to lead when she was trailing 9-13. She once opened the score to 18-15, but Intanon then played a wave of 6-1 and won the first game 21-19.   The second game was controlled by Intanon, and she won easily 21-11. Intanon will compete with He Bingjiao for the women's singles championship in tomorrow's final.